Rear derailleur gear cable set designed to suit the top-of-the-range XTR gearsFitting new gears or completely overhauling your gear cabling couldn't be easier - everything you need in one packIncludes 1.2 mm inner wires (1 x 2100 mm), and black 4 mm SP41 outer casing for the rear derailleur (1 x 2000 mm), 4x sealed outer caps with added tongue with rubber shields, 1x plastic sealed caps, 1x Alloy sealed caps plus inner end capsPolymer coated stainless steel precision ground round inner wire leaves a smooth surface for low friction while providing high corrosion resistanceOuter casing is lubricated internally along its length with low-friction silicone grease to reduce cable frictionSpecial construction process makes for an axially stiff outer casing that transmits shifting movements accurately and quicklyOuter casing is lined with a polymer sheath to assist with the smooth operation of the inner wire